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Nof 235.24.58-

J. SPRUGE. l Spring Hinge.

Patented Dec. 14,1880.

UNITED STATES PATENT CEErcE.

JAMES SPRUCE, OF,WATERBURY, CONNECTICUT, ASSIGNOR TO THE SCOVILLMANUFACTURING COMPANY, OF SAME PLACE.

SPRING-HINGE.

SPECIFICATION forming part of Letters Patent No. 235,468, dated December14, 1880.

Application filed September 4, 1879.

To all whom it may concern: Beit known that I, JAMES SPRUCE, ofWaterbury, in the county of New Haven and Statel ot Connecticut, haveinvented a new Improvement in Spring-Hinges; and I do hereby declare thefollowing, when taken in connection with the accompanying drawings andthe letters of reference marked thereon, to be a full, clear, and exactdescription of the same, and which said drawings constitute part of thisspecification, and represent, in- Figure 1,a sectional face View; Fig.2, a detached view of the sleeve.

This invention relates to an improvement in that class of spring-hingesin which a spiral spring is arranged 'around the pintle, one end bearingon one leaf and the other end on the other leaf, so that the action ofthe spring tends to close the door to which the hinge is applied.

To prevent wearing of the spring two tubes have been introduced aroundthe pintle, one at one end and the other at the other end, and so thatthe tubes would turn with the spring, that at one end in one directionand that at the other end in the other direction. This necessitates thatthe length of the tubes shall correspond to and pintle of the hinge anindependent tube at each end around the pintle, the tube constructedwith a ange at its outer end to rest or bear against the end coilofthespring and between that and fthecorresponding knuckle, as more fully(hereinafter described.`

A is one leaf, constructed with a knuckle, a, at one end and a at theother end. B is the other leaf, with a knuckle, b, at one end and b atthe other end, with a pintle, C, extending through the knuckles at oneend and to and through the knuckles at the other end, witha spiralspring, D, around the pintle, the one end, d, bearing on one leaf andthe other end, 5o

d', bea-ring on the other leaf, all in the usual manner.

e is a sleeve or tube, (shown detached in Fig. 2,) its internal diametercorresponding to the diameter ot' the pintle and its external diame- 55ter to the interior of the spring, and at one end an annular ange, f, isturned outward. One of these tubes is introduced at each end onto thepintle and into the sprin g, with its flange resting against the knuckleand between the 6o knuckle and the spring, as seen in Fig. 1.

By this construction the tube may be made short, and the lange serves tohold it in place or prevent movement in the line ci' axis, and is morecheaply made than the same length of tube can be as a part of theknuckle or attached thereto, and as an independent tube there is asaving of at least half the length of the tube over the usualindependent tube.

I claim- In ahinge,the combination of the two leaves,

each jointed to the other by a pintle, leaving a space between theknuckles, a spring around the pintle, one end bearing upon one leaf andthe other end upon the other leaf, with a sleeve at each end around thepintle and within the spring, the said sleeve constructed with anannular flange to rest between the spring and knuckle, substantially asdescribed.

JAMES SPRUCE.

Witnesses M. L. SPERRY, C. P. Goss.

